JP4390276B2 - Plug connector - Google Patents

Description

  Embodiments of the present invention generally relate to connector systems that electrically connect components to each other, and more particularly to plug and block connectors that connect contacts arranged in a differential pair.

Various electronic systems, such as those used to transmit signals in the telecommunications industry, include connector systems that electrically connect differential pairs of wires to each other. The telecommunications industry uses twisted pair differential pairs where one wire in each differential pair carries a positive signal and the other wire carries the opposite signal. A differential pair does not have a ground, but instead carries a signal intended to have the same absolute amplitude and opposite sign. The connector system includes an insulated plug connector and an insulated block connector that connect two separate sets of wires extending from the electronic component. The plug connector receives a cable that carries a differential pair of wires. The cable is held in the plug connector. The wires are separated from the cable, and each differential pair is untwisted at the neck of the plug connector. Each wire is then transported to the channel to the end point.

  The block connector has a lower end that receives a differential pair of separated wires. A block connector carries a differential pair of block contacts, whereas a plug connector carries a differential pair of plug contacts. The plug contact has a first end configured to engage the electrical wire at a termination point. The block contact has a first end configured to engage the electrical wire at the lower end. The block contact has a second end having a catch configured to engage an electrical wire or other contact. The plug contacts have long cross beams that intersect at the second end. The catch of the block contact engages with the cross contact of the plug contact. The block contacts of the differential pair in the block connector engage with the plug contacts of the corresponding differential pair in the plug connector. One set of plug and block contacts that engage each other in one differential pair connects two wires carrying a positive signal. The other set of plug contact and block contact that engage each other in one differential pair connects two wires carrying a negative signal.

However, conventional connector assemblies have several drawbacks. First, adjacent differential pair contacts (inside either the block connector or plug connector) are placed in close proximity to each other so that unwanted electromagnetic (EM) signal coupling or crosstalk is adjacent to the differential. It is to grow between pairs of contacts. Since crosstalk degrades the quality of signal transmission, the electrical signal may not be deciphered at its destination.

  Connector assemblies have been proposed that provide an EM shield by providing a metal partition shield between the differential pair of contacts. The partition shield acts as a barrier that electrically isolates the differential pair of contacts and prevents unwanted EM signal coupling between the contacts of adjacent differential pairs. The EM signal causes the partition shield to collect capacitive charge. The conventional connector assembly discharges capacitive charges by grounding the partition shields or by interconnecting all the partition shields, so that the charges collected on the partition shields cancel each other. However, since the partition shield only partially surrounds the differential pair of plug contact and block contact, the differential pair of plug contact and block contact is generated by a separate differential pair of plug contact and block contact. It is not well isolated from the charge. Further, since the partition shield is inserted into the plug connector and the block connector, it occupies a special space in the plug connector and the block connector and is difficult to connect to the ground.

Moreover, the plug contacts and block contacts both have different shape than the wire. Due to the difference in shape, the impedance of the differential pair of the plug contact and the block contact is different from the impedance of the differential pair of the electric wire. Due to this impedance mismatch, part of the electrical signal is reflected from the back of the connector, travels through the wire, and returns to the signal source. The amount of signal reflection caused by impedance mismatching is referred to as return loss.

  Also, the differential pair of wires is separated at the neck of the plug connector, i.e. untwisted, and extends along individual parallel channels to the termination point. The parallel channels at the neck of the plug connector add excessive space and length to the connector. When wiring an electric wire, each electric wire is terminated at a different length from the neck, or there is a risk of miswiring that erroneously connects the electric wire to the plug contact. Further, depending on the wire and application, the differential pair of wires may need to be twisted a predetermined number of times within a given length of wire. Controlling the twist per unit length improves the EM coupling between the wires of the differential pair, so that one wire of one differential pair is EM coupled from adjacent differential pairs to the wire. Suppress. Thus, untwisting the differential pair of wires with respect to the distance from the neck to the termination point increases crosstalk between the differential pairs of wires.

  In some industries, standards are set for the performance requirements of electrical connector assemblies, including the bandwidth of signal transmission. As new standards have increased the maximum bandwidth frequency, many conventional connector assemblies exhibit unacceptable levels of crosstalk and return loss to meet more stringent frequency requirements.

  Thus, there is a need for a connector assembly that reduces crosstalk and return loss in a connector system that holds multiple differential pairs of contacts.

Embodiments of the present invention include a plug connector having a plug body that holds a plurality of contacts arranged in at least one differential pair. The contacts extend along the vertical axis of the plug body. The plug connector also includes a wire guide having a first end configured to couple to one end of the plug body. The wire guide is configured to receive a cable and has a second end that includes a differential pair of adjacent wires. The wire guide has a plurality of guide slots, each guide slot carrying a corresponding differential pair of wires. The first end of the wire guide has a channel that opens to the second end for receiving a contact. The first end has a wire lining groove extending from the guide slot to the channel. Each wire trimming groove receives one wire.

  Embodiments of the present invention include a plug connector having a housing guide formed along the longitudinal axis. The housing includes a channel that opens to a lower end of the housing for receiving a contact. The channels are grouped into differential pairs including first and second channels disposed on the common side of the vertical axis adjacent to the differential pair of channels disposed on both sides of the vertical axis.

  Embodiments of the present invention comprise a connector having a housing having a channel extending between a first end and a second end of the housing. The connector includes an insert carrying contacts arranged in a differential pair. The channel receives the insert and places contacts in a predetermined direction. The housing is at least partially covered with a conductive material to shield the differential pair of contacts.

FIG. 1 is a partially exploded perspective view of a connector system 10 formed in accordance with one embodiment of the present invention. The connector system 10 connects incoming and outgoing insulated wires (not shown) arranged in differential pairs , such as those used in telecommunications industry operating systems for data, voice or power transmission. It is configured. By way of example only, one wire of each differential pair carries a positive signal and the other wire of each differential pair carries a negative signal. Positive and negative signals are intended to have the same absolute amplitude.

  The connector system 10 includes a block connector 14 and a plug connector 22 connected to a lacing strip 18. The racing strip 18 carries a differential pair of wires (not shown) connected to a first electronic component (not shown). The wires of each differential pair are adjacent to each other. For example, the wires are twisted together. The wires extend through the racing strip 18 and terminate in slits 26 formed in the racing strip 18. The electric wire is connected to a pressure contact 30 (see FIG. 8) in the block connector 14. The block connector 14 has a release notch 305 that extends around the terminated wire so that the exposed end of the wire does not contact the block connector 14. The racing strip 18 also has a post slot 27 that receives the block connector 14. The plug connector 22 carries a differential pair of electric wires (not shown) connected to second electronic components (not shown) and extending into the plug connector 22 through electric wire openings 34. The wires of each differential pair are adjacent to each other. For example, the wires are twisted together. The electric wire is connected to the press contact 38 in the plug connector 22. The plug connector 22 is connected to the block connector 14 so that the contacts 30, 38 engage with each other to electrically connect the wire extending to the plug connector 22 to the wire extending to the racing strip 18.

  FIG. 2 is an exploded perspective view of the plug connector 22 formed in accordance with one embodiment of the present invention. The plug connector 22 includes a plug electric wire guide 42 and a plug main body 46. The plug body 46 is described in more detail with respect to FIG. 11, and the plug wire guide 42 is described in more detail with respect to FIG.

  FIG. 11 is a partially exploded perspective view of plug body 46 and insert 66 formed in accordance with one embodiment of the present invention. Plug body 46 is formed of an insulating material and has parallel side walls 54 formed of parallel end walls 58. Parallel partition walls 62 extend between the side walls 54 to define the channel 50.

  FIG. 13 is a cross-sectional view of the plug body 46 of FIG. 11 taken along line 13-13 of FIG. The plug body 46 having all of the side wall 54, the end wall 58 (see FIG. 11) and the partition wall 62 is covered with a conductive material 304. By way of example only, the conductive material 304 may be a metal plating such as copper or nickel. Alternatively, the entire plug body 46 may be partially covered with the conductive material 304. For example, only the side wall 54 and the partition wall 62 may be covered with the conductive material 304.

Returning to FIG. 11, the channel 50 receives a box-shaped insulating insert 66. Each insert 66 includes an upper tray 210 formed by a contact support wall 214. Each insert 66 has a pair of contact slots 70 that extend through the upper tray 210 along a contact support wall 214 parallel to the vertical axis 150. Contact slot 70 carries a differential pair 74 of contacts 38. Each contact 38 of the differential pair 74 is carried in a contact support wall 214.

  FIG. 3 is a perspective view of a contact 38 formed in accordance with one embodiment of the present invention. The contact 38 has conductivity, and has a capturing portion 78 formed perpendicular to the rectangular bar 82. The catch 78 is defined by a protrusion 86 separated by a gap 90.

Returning to FIG. 11, the bar 82 of the contact 38 extends through the contact slot 70 and the catch 78 extends upward beyond the insert 66. All of the bars 82 are held in the insert 66, aligned along the longitudinal axis 102, and parallel to each other. Adjacent the insert 66, a differential pair 74 which separate catching section 78 on the offset side of the longitudinal axis 102 carries, to form a zigzag arrangement pattern of the differential pair 74. That is, adjacent capture portions 78 of adjacent differential pairs 74 are separated along the vertical axis 102 and the horizontal axis 106 by a greater distance than the capture portions 78 within the same differential pair 74.

  For example, as shown in FIG. 12, the differential pair 74 of the capturing portion 78 is held in the insert 66 by both capturing portions 78 of the differential pair 74 on one side of the longitudinal axis 102. Adjacent inserts 66 in plug body 46 (see FIG. 11) carry a differential pair 74 of captures 78 on the opposite side of longitudinal axis 102 so that adjacent differential pairs 74 of captures 78 in plug body 46 are , Located on opposite side walls of the longitudinal axis 102. The differential pair of captures 78 is received within the differential pair 158 of the contact channel 154 (see FIG. 4). The differential pairs 158 are similarly offset from each other on opposite sides of the longitudinal axis 102.

  Returning to FIG. 11, the insert 66 comprises opposing rectangular retaining beams 98 that extend outwardly away from each other. When the insert 66 is pressed down into the channel 50 in the direction of arrow A, the retaining beam 98 engages the insert 66 at the upper edges of the side walls 54 of the plug body 46 and suspends the insert 66. The latch catch 110 is formed on the side walls 54 and extends upward from the side walls 54. The latch capturing part 110 faces in a direction perpendicular to the partition wall 62. The latch capturing portion 110 receives a latch 114 (see FIG. 2) extending from the plug wire guide 42 (see FIG. 2) and holds the plug wire guide 42 with respect to the plug body 46.

  Returning to FIG. 2, the plug wire guide 42 is non-conductive and has a triangular shape with a cable support post 198 extending from the upper end 199. The cable support posts 198 are separated by the wire gap 202. The plug wire guide 42 has side walls 122 that are inclined on opposite side surfaces thereof. A latch 114 extends from both side walls 122 and engages with a latch catch 110 (see FIG. 11) of the plug body 46 (see FIG. 11). Each sidewall 122 has a guide slot 118 cut therein. Optionally, the guide slots 118 on opposite side walls 122 may be offset from one another along the longitudinal axis 102. The guide slots 118 on each side wall 122 are separated by a partition block 126. Each guide slot 118 receives a differential pair of wires extending from a cable (not shown) that is inserted into the wire opening 34 (see FIG. 1) of the plug connector 22. The wires in each differential pair remain twisted around each other in the guide slot 118.

  FIG. 4 is a perspective view of the plug wire guide 42 formed according to the embodiment of the present invention as viewed from below. Each guide slot 118 is divided into a wire lining groove 130 by a wire partition 134 at the lower end 201 of the plug wire guide 42. Guide slots 118 isolate the differential pairs of wires from each other and keep the wires of each differential pair twisted to the wire divider 134. Since the wires of each differential pair are not twisted and separated from each other by the wire partition 134, each wire trimming groove 130 holds a single wire. For this reason, each electric wire is not twisted only by a short length and can be accessed by an operator for wiring. The partition block 126 includes an open-ended rectangular cavity 138 that receives the partition wall 62 (see FIG. 11) of the plug body 46 when the plug body 46 (see FIG. 11) is connected to the plug wire guide 42. Both ends of the plug wire guide 42 have end walls 142 including wall gaps 146 configured to receive both end walls 58 (see FIG. 11) of the plug body 46 when the plug body 46 is connected to the plug wire guide 42. It has.

  The differential pair 158 of the contact channel 154 passes through the plug wire guide 42 in parallel with the vertical axis 150. Each differential pair 158 is offset from an adjacent differential pair 158 on each side of the longitudinal axis 102 to form a first column 318 and a second column 322 of the differential pair 158. Adjacent contact channels 154 of adjacent differential pairs 158 are also separated from each other by a distance D 7 along the horizontal axis 106. The contact channels 154 of each individual differential pair 158 are offset from each other along the vertical axis 102 and the horizontal axis 106. The differential pair 158 of the contact channel 154 is arranged to align with the corresponding differential pair 74 (see FIG. 11) of the catch 78 (see FIG. 11) extending from the insert 66 (see FIG. 11) and the differential pair. 74 is received. The contact channel 154 receives the capturing portion 78 when the plug wire guide 42 is connected to the plug body 46 (see FIG. 2). The contact channel 154 of the differential pair 158 and the capturing part 78 of the differential pair 74 are separated from each other along the horizontal axis 106 by the interchannel distance D1. Further, the contact channels 154 of the differential pair 158 are separated from the longitudinal axis 102 at different distances. The distance D1 maintains the predetermined proximity of the captures 78 held within the differential pair 158 of the contact channel 154 so that the electrical signal is compared when passing from the wire through the contact 38 (see FIG. 11). Experience uniform impedance. Accordingly, the return loss is reduced due to the alignment of the capture 78 within the differential pair 158 of the contact channel 154.

Contact channel 154 of differential pair 158 has centerlines 326A, 326B separated by a distance D2. Adjacent contact channels 154 of adjacent differential pairs 158 have centerlines 326B and 326C separated by a distance D3. The distance D3 is larger than the distance D2. Thus, the distances D3 and D7 separate the capture 78 (see FIG. 11) so that the contacts 38 (see FIG. 11) carried in the differential pair 158 of the contact channel 154 are adjacent to the adjacent differential of the contact channel 154. They are more electromagnetically coupled to each other than to the contacts 38 carried in the pair 158. For this reason, the crosstalk between the contacts 38 of the adjacent differential pair 158 is reduced.

  When the plug wire guide 42 is connected to the plug main body 46 (see FIG. 2), the wire straightening groove 130 is a gap 90 (see FIG. 3) between the wires 38 held in the wire shaping groove 130 (see FIG. 3). 3) to cross the contact channel 154. The protrusion 86 of the contact 38 engages with the electric wire and is electrically connected to the electric wire.

Returning to FIG. 2, the plug connector 22 also has a mating plug cover 162. The plug cover 162 has a triangular shape and can be connected so as to be snap-engaged with each other on the plug wire guide 42. The plug cover 162 has an outer wall 166 in which both side walls 206 and an upper wall 194 are formed. The lower end of the outer wall 166 has a gap 170 on the plug body 46 for receiving the latch catch 110 (see FIG. 11). Each outer wall 166 has a square notch 174 and a rectangular latch 178. Further, the outer wall 166 has a capturing part 190 extending inward toward each other. Since both the plug covers 162 are disposed on the plug wire guide 42, the capturing portion 190 slides under the side walls 122 of the plug wire guide 42, and the upper wall 194 is placed on the cable support post 198 of the plug wire guide 42. Appear. The latch 178 is received in the notch 174 for snap engagement. The upper wall 194 has a semicircular cutout that defines a wire opening 34 (see FIG. 1) when the plug cover 162 is connected to the plug wire guide 42.

  FIG. 5 is a perspective view of a plug connector 22 formed in accordance with one embodiment of the present invention. The plug connector 22 has been assembled. A differential pair 74 of contacts 38 is shown extending between the side walls 54 of the plug connector 22.

FIG. 6 is an exploded perspective view of the block connector 14 and racing strip 18 formed in accordance with one embodiment of the present invention. The block connector 14 includes an end wall 216 and a post 218 that extend upward near the upper end 222. Posts 218 are disposed near the ends of block connector 14 and extend between side walls 250 to define channel 278. Each channel 278 receives a plastic insert 282 that carries a differential pair 286 of contacts 30. Each insert 282 includes a first inclined insulator 226 and a second inclined insulator 228 that alternately extend upward. The first and second inclined insulators 226 and 228 are offset from each other. Each insert 282 also has a latch catch 290 on opposite sides. Since the insert 282 is disposed within the channel 278, the latch catch 290 receives latches 294 that extend from the side walls 250 of the block connector 14.

  FIG. 7 is a perspective view of a block connector 14 formed in accordance with one embodiment of the present invention. The first and second inclined insulators 226 and 228 extend upward at the upper end 222 of the block connector 14. The first and second inclined insulators 226 and 228 of adjacent inserts 282 are separated by posts 218. The first and second inclined insulators 226 and 228 on the common insert 282 are integrally formed outside. The holding slot 246 and the contact channel 230 pass through the block connector 14 between the first and second inclined insulators 226 and 228 in parallel with the vertical axis 150. Contact channel 230 holds contacts 30 arranged in differential pair 234. The contact 30 passes through the block connector 14 in parallel with the vertical axis 150.

  The block connector 14 receives the contact 38 (see FIG. 3) of the plug connector 22 (see FIG. 5) at the upper end 222 and the electric wire at the lower end 242. The contacts 38 are arranged in a differential pair 74 (see FIG. 5), and the wires are similarly arranged in a differential pair. The contacts 38 arranged in the differential pair 74 are inserted into the corresponding holding slots 246 to engage the corresponding contacts 30 near the upper end 222. Similarly, the wires arranged in the differential pair engage with the corresponding contacts 30 at the lower end 242.

FIG. 8 is a perspective view of a contact 30 formed in accordance with one embodiment of the present invention. Contact 30 is formed of a thin piece of metal having an upper portion 254 and a lower portion 238. Two catch legs 258 extend from the lower portion 238 and define a V-shaped wire catch 262 that receives a corresponding wire therebetween. The lower portion 238 extends from the lower end 242 of the block connector 14 (see FIG. 7). The two catch legs 266 also extend from the upper portion 254 to define another V-shaped wire catch 270. The contact 30 is retained within the block connector 14 such that the upper portion 254 is disposed within the retention slot 246 (see FIG. 7) to receive the bar 82 (see FIG. 3) of the contact 38 within the wire catch 270. The Conversely, the wire is pressed into the wire capture portion 262 at the lower end 242 until the capture leg 258 breaks the insulation of the wire and electrically engages the wire.

Returning to FIG. 7, the first and second inclined insulators 226 and 228 are offset from each other laterally with respect to the longitudinal axis 102 that passes through the central plane of the block connector 14. The first and second graded insulators 226, 228 include a recess 298 that defines a contact channel 230. The recesses 298 define a first group of contact channels 230 arranged in a row in the first row 302 and spaced apart on one side of the longitudinal axis 102. The recesses 298 define a second group of contact channels 230 arranged in a row in the second row 306 and spaced apart on the other side of the longitudinal axis 102.

  FIG. 9 is a plan view of the block connector 14 of FIG. Contact channel 230 of insert 282 carries differential pair 286 of contacts 30. The contact channels 230 of the insert 282 are separated from each other by the interchannel distance of D4. The distance D4 keeps the contacts 30 of the differential pair 286 in close proximity to each other so that electrical signals experience a relatively uniform impedance as they pass between the wires through the contacts 30. Accordingly, the alignment of the contacts 30 within the differential pair 286 optimizes the return loss.

  Contact 30 of differential pair 286 has centerlines 310A, 310B separated by distance D5, while adjacent contact 30 of adjacent differential pair 286 has centerlines 310B, 310C separated by distance D6. The distance D6 is larger than the distance D5. Since D6 is greater than D5, contacts 30 in differential pair 286 are more electromagnetically coupled to each other than contacts 30 in adjacent differential pair 286. For this reason, the crosstalk between the contacts 30 of the adjacent differential pair 286 is reduced.

  Returning to FIG. 7, in another method, the contact channels 230 may be arranged similarly to the channels 154 (see FIG. 4) of the plug wire guide 42 (see FIG. 4). For example, adjacent differential pairs 234 of contact channels 230 may be disposed on opposite sides of the longitudinal axis 102 with the individual contact channels 230 of the differential pairs 234 being staggered with respect to each other. Contacts 38 (see FIG. 5) in the plug connector 22 (see FIG. 5) are correspondingly aligned to be received in the contact channel 230.

  14 is a cross-sectional view of the block connector 14 taken along line 14-14 of FIG. The block connector 14 including both side walls 250, end walls 216 (see FIG. 6) and posts 218 is covered with a conductive material 300. By way of example only, the conductive material 300 may be a metal plating such as copper or nickel. Alternatively, the entire block connector 14 may be partially covered with the conductive material 300. For example, only the side wall 250 and the post 218 may be covered with the conductive material 300.

  FIG. 10 is a perspective view of the block connector 14 of FIG. 7 as viewed from below. The insert 282 holds the contact 30 of the differential pair 286 in the channel 278 between the posts 218. During assembly, when the block connector 14 is connected to the racing strip 18 (see FIG. 1), the catch leg 258 of the contact 30 is within the slot 26 (see FIG. 1) in the racing strip 18 that holds and engages the wire. The post 218 slides into the post slot 27 (see FIG. 1).

  Returning to FIG. 1, in operation, the plug connector 22 is connected to the block connector 14 so that the bar 82 of the contact 38 slides into the holding slot 246 of the block connector 14 perpendicular to the contact 30 (see FIG. 8). And is received in the wire catch 270 of the contact 30 (see FIG. 8). The partition wall 62 (see FIG. 11) covered with the conductive material 304 (see FIG. 13) has a differential pair 74 (see FIG. 2) and 286 (see FIG. 2) in which the continuous conductive shields engage the contacts 38 and 30. 6) to engage each post 218 covered with a conductive material 300 (see FIG. 14). For this reason, the differential pair of wires extending to the racing strip 18 is connected to the corresponding differential pair of wires extending to the plug connector 22.

  As shown in FIG. 11, the conductive material 304 (see FIG. 13) of the partition wall 62, the side walls 54, and the end wall 58 of the plug body 46 separates the differential pair 74 of the contacts 38 of the plug connector 22, Acts as a barrier or shield to prevent crosstalk and interference between adjacent differential pairs 74. As the electrical signal travels between the wires through the differential pairs 74 and 286 (see FIG. 9) to which the contacts 38 and 30 (see FIG. 9) are connected, the electrical signal is placed close to the contacts 38 and 30. An EM localized field is generated that induces capacitive charges to the conductive material 304 (see FIG. 13) on the sidewalls 54, end walls 58 and partition walls 62. For example, one contact 38 in the differential pair 74 carries a negative signal that generates a positive charge on the adjacent partition wall 62 (see FIG. 11), while the other contact 38 in the differential pair 74 is a differential pair. It carries a positive signal that generates a negative charge on the opposite partition wall 62 that surrounds 74. When the conductive material 304 (see FIG. 13) on the partition wall 62 and the entire plug connector 22 are connected, the charges collected separately on the opposing partition wall 62 positively and negatively cancel each other, and the net charge is substantially reduced. It becomes zero.

  Returning to FIG. 6, the posts 218, the side walls 250 and the end walls 216 covered with the conductive material 300 (see FIG. 14) surrounding the differential pair 286 of the contacts 30 of the block connector 14 are similar to the above example. Acts and cancels the electric charge collected in the block connector 14. Further, the charge provided on the post 218 by the adjacent contact 30 of the first differential pair 286 of the block connector 14 is adjacent to the first differential pair 74 (see FIG. 11) of the plug connector 22 (see FIG. 11). The opposite charge applied on the partition wall 62 (see FIG. 11) is canceled by the contact 38 (see FIG. 11).

  The electrically common shield produced by the conductive material 304 (see FIG. 13) of the plug connector 22 (see FIG. 1) and the conductive material of the block connector 14 (see FIG. 14) is grounded or any other fixed potential. Also not connected to. Optionally, the interconnected shields of the engaged plug connector 22 and block connector 14 may be grounded by connecting a ground wire to any point outside the metal plated plug connector 22 or block connector 14. May be.

  In another embodiment, only the post 218 and the partition wall 62 may be plated so that the contacts 30, 38 are each shielded only at two opposing sides. In another embodiment, only one of the plug connector 22 and the block connector 14 may be metal plated. In another embodiment, the plug connector 22 may not carry the contact 38, rather the plug wire guide 42 directly contacts the wire to the contact 30 in the block connector 14. Further, an electric wire may be directly connected to the contact 30 in the block connector 14 without using the plug connector 22. Also, the structure of the plug connector 22 and the block connector 14 may be enlarged to have more contacts 30, 38 that connect to more differential pairs of wires.

  The connector system provides various advantages. First, placing the contact contacts within a differential pair closer to each other along the longitudinal and lateral axes than adjacent contact contacts of an adjacent differential pair is possible within any one differential pair. Increase electromagnetic coupling between the pressure contacts and reduce crosstalk between the pressure contacts of adjacent differential pairs. Also, aligning the pressure contacts in parallel rows with the differential pairs of pressure contacts arranged closer together along the longitudinal axis substantially reduces the impedance formed by the electrical signal passing through the pressure contacts. Matching is performed to reduce the reflection loss or return loss of the electrical signal.

  Further, by metal plating the plug connector and the block connector, since the press contact is surrounded on all sides by the metal shield, it is better isolated from each other than when only two sides are surrounded by the shield. The interconnected plating shield counteracts the charge on the plug connector and block connector with the pressure contact, reducing crosstalk between the differential pairs of pressure contacts in the plug connector and block connector. Further, the plating of the plug connector and the block connector eliminates the need to insert a bulky shield structure in the plug connector and the block connector, and enables easy grounding of the plating shield.

  In addition, by isolating each twisted differential pair of wires within the guide channel of the plug wire guide, the differential pairs of wires can be untwisted and only separated by a short distance within the wire lining groove. is there. For this reason, the wires of each differential pair are better electromagnetically coupled to each other, reducing the length of wires that are potentially miswired by the operator.

  Although the invention has been described with reference to embodiments, those skilled in the art will recognize that various modifications can be made and equivalents can be substituted without departing from the scope of the invention. In addition, many modifications may be made to adapt a particular condition or material to the teachings of the invention without departing from the scope of the invention. Accordingly, the present invention is not intended to be limited to the particular embodiments disclosed, but is intended to include all embodiments within the scope of the appended claims.

1 is a partially exploded perspective view of a connector system formed in accordance with an embodiment of the present invention. 1 is an exploded perspective view of a plug connector formed according to an embodiment of the present invention. FIG. 1 is a perspective view of a pressure contact (IDC) formed in accordance with an embodiment of the present invention. FIG. It is the perspective view which looked at the plug electric wire guide formed according to one Embodiment of this invention from the downward direction. 1 is a perspective view of a plug connector formed in accordance with an embodiment of the present invention. 1 is an exploded perspective view of a block connector and a racing strip formed in accordance with an embodiment of the present invention. 1 is a perspective view of a block connector formed in accordance with one embodiment of the present invention. 1 is a perspective view of a pressure contact formed in accordance with one embodiment of the present invention. FIG. It is a top view of the block connector of FIG. It is the perspective view which looked at the block connector of FIG. 7 from the downward direction. 1 is a partially exploded perspective view of a housing and insert formed according to one embodiment of the present invention. FIG. It is the perspective view which looked at the insert formed according to one Embodiment of this invention from the upper direction. It is sectional drawing of the plug main body of FIG. 11 along the 13-13 line | wire of FIG. FIG. 14 is a cross-sectional view of the block connector of FIG. 9 taken along line 14-14 of FIG. 9;

Explanation of symbols

14 Block connector 22 Plug connector 40 Plug body 42 Electric wire guide 70 Contact slot 74, 286 Differential pair 102 Vertical axis 106 Horizontal axis 118 Guide slot 126 Partition block 130 Electric wire shaping groove 134 Electric wire divider 154, 230 Contact channel 158, 234 Difference Movement

Claims (14)

A plug body holding a plurality of contacts arranged in at least one differential pair and extending along a vertical axis of the plug body; and a wire guide having a first end configured to be coupled to one end of the plug body. A plug connector comprising:
The wire guide has a second end configured to receive a cable and including at least one differential pair of adjacent wires;
The wire guide has at least one guide slot;
The at least one guide slot carries a corresponding differential pair of wires;
The first end of the wire guide comprises a channel that opens to the second end for receiving the contact;
The channels for a plurality of contacts arranged in the at least one differential pair are smaller than a distance to an adjacent differential pair channel along the longitudinal axis of the wire guide perpendicular to the vertical axis. Are separated from each other by a predetermined distance,
The channels for a plurality of contacts arranged in the at least one differential pair are separated by a predetermined distance along a horizontal axis perpendicular to the vertical axis with respect to adjacent channels;
The first end has a wire lining groove extending from the at least one guide slot to the channel;
A plug connector characterized in that each of the electric wire straightening grooves receives one electric wire.   The plug connector according to claim 1, wherein the electric wire straightening groove joins the electric wire across the channel and engages with the contact inserted into the channel. The at least one guide slot extends along the vertical axis;
The plug connector according to claim 1, wherein the wire straightening groove extends from the at least one guide slot along a horizontal axis at the first end of the wire guide. The wire guide has a partition block on both opposing side surfaces,
The plug connector according to claim 1, wherein adjacent guide slots on the wire guide are separated by the partition block. The wire guide includes a wire partition,
2. The plug connector according to claim 1, wherein the electric wire partition extends into the at least one guide slot and divides the at least one guide slot into the plurality of electric wire straightening grooves. The wire guide is formed along the longitudinal axis,
The channels are grouped into differential pairs having first and second channels arranged on the common side of the vertical axis adjacent to the differential pairs of channels arranged on both sides of the vertical axis. The plug connector according to claim 1. The plug body has a contact slot extending therethrough along the vertical axis;
The channel of the wire guide penetrates along the vertical axis and perpendicular to the contact slot;
The channels are aligned in a differential pair;
The contact slots are aligned in a differential pair;
The plug connector of claim 1, wherein the channel and the contact slot are aligned with each other to receive the contact in a differential pair. The plug connector is mounted on a block connector carrying a block contact that engages with the contact held by the plug connector;
The plug connector of claim 1, wherein the block connector is plated with an interconnected conductive material that forms an electrically common shield surrounding the block contact. A plug body that holds a plurality of contacts in contact slots arranged in at least two differential pairs, the plug body and the plug body extending along a vertical axis of a plug connector, and the plug body A wire connector having a first end configured to couple to one end of the plug connector,
The first end includes a contact channel arranged in at least two differential pairs and extending parallel to the vertical axis;
The contact channel and the contact slot are aligned with each other to receive the differential pair of contacts;
The wire guide has a second end configured to receive a cable and including a differential pair of adjacent wires;
The wire guide has a plurality of guide slots,
Each of the guide slots carries a corresponding differential pair of wires;
The contact channels of each differential pair are separated from each other by a predetermined distance along the longitudinal axis of the wire guide perpendicular to the vertical axis that is smaller than the distance to the contact channel for an adjacent differential pair. ,
The contact channels arranged in the at least two differential pairs are separated from adjacent contact channels by a predetermined distance along a horizontal axis orthogonal to the vertical axis,
The first end has a plurality of wire lining grooves extending from the guide slot to the channel;
Each of the electric wire straightening grooves receives one electric wire so that the contact received in the contact channel can be engaged with the electric wire. The plug connector extends along the longitudinal axis;
10. The plug connector of claim 9, wherein the plug body comprises inserts carrying the contacts in the contact slots that are aligned parallel to each other and along the longitudinal axis. The guide slot extends along the vertical axis;
The plug connector according to claim 9, wherein the wire trimming groove extends from the guide slot along a horizontal axis at the first end of the wire guide. The plug connector is mounted on a block connector carrying a block contact that engages with the contact held by the plug connector;
10. The plug connector of claim 9, wherein the block connector and the plug body are plated with interconnected conductive materials that form an electrically common shield surrounding the block contact. The wire guide includes a wire partition,
10. The plug connector according to claim 9, wherein the electric wire partition extends into the guide slot and divides the guide slot into a plurality of the electric wire straightening grooves. The wire guide is formed along the longitudinal axis,
The contact channels are grouped into differential pairs having first and second contact channels disposed on the common side of the longitudinal axis adjacent to the differential pairs of contact channels disposed on both sides of the longitudinal axis. The plug connector according to claim 9, wherein the plug connector is formed.

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